Re: [PATCH v2 2/3] mmc: sh_mobile_sdhi: explain clock bindings

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On Tue, Jan 17, 2017 at 02:59:39PM -0500, Chris Brandt wrote:
> In the case of a single clock source, you don't need names. However,
> if the controller has 2 clock sources, you need to name them correctly
> so the driver can find the 2nd one.
> 
> Signed-off-by: Chris Brandt <chris.brandt@xxxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/mmc/tmio_mmc.txt | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
> index a1650ed..258b98c 100644
> --- a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
> +++ b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
> @@ -25,8 +25,29 @@ Required properties:
>  		"renesas,sdhi-r8a7795" - SDHI IP on R8A7795 SoC
>  		"renesas,sdhi-r8a7796" - SDHI IP on R8A7796 SoC
>  
> +- clocks: Most controllers only have 1 clock source per cahnnel. However, some

channel.

> +	  have 2. If 2 clocks are specified, you must name them as "core" and

Maybe "However, some have a second clock dedicated to card detection."?




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